Sheet-metal back for barber-chairs



W. F. KOKEN.

SHEET METAL BACK FOR BARBER CHAIRS.

APPLICATION FILED MAY I3. 1920- Patnted Dec. 7, 1920.

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WALTER E. KOKE1\T, OF ST. LOUIS, MISSOURI.

'SHEET-METAL BACKl non BARBER-CHAIRS.

Specification of Letters Patent.

Patented Deo. 17, 1920.

-Appiicaiion flies May is, i920. serial No. 381,691.

To all whom t may concern.'

Be it known that I, lamine F. Koning-a citizen of the United States,residing at St. Louis, Missouri, have invented a certain new and usefulimprovement in Sheet-Metal Backs for Barber-Chairs, of which thefollowing is a. full, clear, and exact description, such as will enableothers skilled in the art to which it appertains to make and use thesame. f f

This invention relates to chairs of the kind that are used by barbers,dentists and other specialists, and particularly, barber chairs of thetype which are provided withV a metal back frame.

rlhe metal back frame that is now generally used on barber chairscomprises a heavy casting that forms the exterior portion or exposedportion of the back frame. Metal back frames of the character referredto are exceptionally heavy and are costly to manufacture on account ofthe large amount of machine work required in boring holes in the castingand in grinding off the outer surface of theV casting preparatory tofinishing it in porcelain enamel.

The object of my invention is to provide a back frame for barber chairs,dentist chairs and the like that is light in weight, inexpensive tomanufacture and of neat and ornamental appearance.

To this end I have devised a back frame for chairs of the characterreferred to that is composedof a core or supporting portion that carriesthe upholstering of the back and a sheet metal shell combined with saidsupporting portion so as to form the exterior or exposed portion of theback frame.

Figure l of the drawings is a top plan view of a back frame constructedin accord ance with my invention.

Fig. 2 is an elevational view of the sheet metal shell of said frame,looking at the interior of same. l

Fig. 3 is a vertical sectional view of the top cross member of the sheetmetal shell and a portion of the supporting structure or core with whichthe shell is combined, said view being taken on the line 3-3 of Fig. l;and

Fig. 4 is a horizontal sectional view of one of the vertical sidemembers of the shell,I

taken on the line 4-4 of Fig. l, showing a portion of the core orsupporting structure.

Referring to the drawings which illustrate the preferred form of myinvention, A designates the supporting portion or core of the back framewhich preferably consists of a wooden framework either solid or ofskeleton construction, and B designates the sheet metal shell that formsthe exterior or exposed portion of the back frame. The shell B ispreferably pressed from a single piece of Vsheet metal, and in theembodiment of my invention herein illustrated is in the form of'arectangular fi'ame composed of two side members l, a top cross member 2and a bottom cross member 3 integrally conneeted together. The verticalweb of the shell B is provided at its outer edge with aforwardlyprojecting ange 4 that forms a rim which surrounds thesupporting structure or core A and at the inner edge of said web is asmall {iange or bead 5 which serves to stiffen the shell and form a neatiinish for the inner edge of same. The rim or forwardly-projectingflange 4 of the shell is preferably provided at its front edge with abead or curled portion 6 that stiffens same and imparts an ornamentalappearance to the back frame.

Then the shell B is combined with the core or supporting structure Asaid shell covers the rear side of the edge portion of said supportingstructure and also the top and bottom edges and the side edges of saidsupporting structure. rlhe bead 5 at the inner edge of the shell lapsover the upholstering material 7 that covers the rear side of the coreA, and the bead 6 on the front edge of the rim 4 of the shell laps overthe upholstering material 8 that covers the front side of said core, asshown in Figs. 3 and 4.

The upper cross member 2 of the shell B is preferably provided with adepending portion 9 that is pressed rearwardly at 10 so as to a portionthat provides a clearance for the latch (not shown) which retains thehead rest of the chair in adjusted position. The plunger or button (notshown) that is used to operate said latch projects rearwardly through ahole 11 in the rearwardly pressed portion 10 of the shell. Holes 12 areformed in the forwardly-projecting flange or rim 4 that forms the topside of the top cross member 2 of the shell so as to receive the guiderods on the headrest of the chair.

A back frame of the construction above described is light in weight, asit is composed of a lightweight supporting strucform a pocket in saiddepending ture or core incased in a sheet metal shell that forms theexterior of the back frame. Such a back Aframe can be manufactured at aloW cost, owing to the fact that the sheet metal shell of same can bepressed from a piece of sheet metal and finished in porcelain enamelWithout first grinding off theA surface of same that is to be coatedwith enamel. Moreover, such a back frame presents a neat and ornamentalappearance.

Having thus described my invention, what I claim as new and desire tosecure by Letters Patent, is:

l. A back frame for barber chairs and the like, composed of a supportingstructure or core, and a sheet metal shell combined With saidsupporting` structure and provided Witha vertically-disposed web thatforms the rear side of the frame and a for- Wardly-projecting flangethat surrounds said supporting structure and forms the exposed edgeportion of the back frame.

2. A back frame for barber chairs and the like, composed of a supportingstruc-V ture, and a pressed sheet metal shell combined with same andconsisting of a substantially rectangular frame provided at its outeredge with a portion that surrounds said supporting structure.

3. A back frame for barber chairs and the like, comprising a sheet metalshell provided With atop cross member having a depending portion, and apocket in said depending portion formed by pressing said portionrearwardly so as to form a depression therein.

4. A back frame for barber chairs andV the like, composed of a core orsupporting structure, a sheet metal shell combined with said core andprovided With a verticallydisposed Web that forms the rear side of thevback frame and a forvvardly-projecting flange or rim that surrounds thesupporting structure, a depending portion on the top Cross member ofsaid shell, and a pressed part on said depending portion for the purposedescribed.

WALTER F. KOKEN.

